Fans 280 mm Centrifugal Cooling Fan 400 VAC 1000 W

280 mm 400 VAC Centrifugal Fan

The K3G280-AU11-C1 is a three-phase industrial centrifugal cooling fan built for continuous duty in HVAC, photovoltaic tracking and heavy-duty ventilation systems. Its external-rotor motor sits inside the impeller for compact installation and direct motor cooling. The unit delivers up to 35 000 m³/h airflow at 3 100 rpm while drawing 1.6 A at 400 VAC. It operates reliably from -25 °C to 60 °C ambient temperature.

Wiring and Mounting Notes

The fan accepts a nominal 380–480 VAC supply at 50/60 Hz and requires a three-phase connection; single-phase mains will not work. No scroll housing is included, so the backward-curved impeller must be mounted as a free-wheeling unit with adequate inlet clearance. Verify that the control interface matches your analogue or serial speed-control signal before commissioning. Incorrect phasing or voltage outside the stated range will trip protection or damage the motor.

1 000 W Power Rating Decides Fit

The 1 000 W power consumption figure is the primary specification that determines whether this fan matches your system's electrical design and thermal load. Cross-reference this value against your available circuit capacity and the required airflow target before purchase.